ATE98824T1 - Fm-empfangsteil. - Google Patents
Fm-empfangsteil.Info
- Publication number
- ATE98824T1 ATE98824T1 AT89906029T AT89906029T ATE98824T1 AT E98824 T1 ATE98824 T1 AT E98824T1 AT 89906029 T AT89906029 T AT 89906029T AT 89906029 T AT89906029 T AT 89906029T AT E98824 T1 ATE98824 T1 AT E98824T1
- Authority
- AT
- Austria
- Prior art keywords
- pct
- unit
- receiving
- characteristic
- detector
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
- H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
- H03D3/005—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling a bandpass filter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
- H04B1/1669—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels of the demodulated composite stereo signal
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
- Stereo-Broadcasting Methods (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Structure Of Receivers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3818750A DE3818750A1 (de) | 1988-05-30 | 1988-05-30 | Fm-empfangsteil |
PCT/DE1989/000357 WO1989012353A1 (fr) | 1988-05-30 | 1989-05-30 | Element de reception fm |
EP89906029A EP0436542B1 (fr) | 1988-05-30 | 1989-05-30 | Element de reception fm |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE98824T1 true ATE98824T1 (de) | 1994-01-15 |
Family
ID=6355678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT89906029T ATE98824T1 (de) | 1988-05-30 | 1989-05-30 | Fm-empfangsteil. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5241697A (fr) |
EP (1) | EP0436542B1 (fr) |
JP (1) | JPH03504668A (fr) |
AT (1) | ATE98824T1 (fr) |
AU (1) | AU3692189A (fr) |
DE (2) | DE3818750A1 (fr) |
WO (1) | WO1989012353A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2825389B2 (ja) * | 1991-11-22 | 1998-11-18 | 株式会社東芝 | Fm受信機 |
DE4239759C2 (de) * | 1992-11-26 | 2001-08-16 | Atmel Germany Gmbh | Verfahren zum Umschalten auf eine empfangswürdige Alternativfrequenz eines RDS-Empfängers |
DE4239758C2 (de) * | 1992-11-26 | 1999-09-16 | Temic Semiconductor Gmbh | Verfahren und Schaltungsanordnung zur Störsignalunterdrückung in FM-Empfängern |
DE4332767C2 (de) * | 1993-09-25 | 1997-04-24 | Telefunken Microelectron | Verfahren zur Steuerung eines FM-Empfängers mit nachführbarem ZF-Filter und Schaltungsanordnung zur Dürchführung des Verfahrens |
JPH07183822A (ja) * | 1993-12-24 | 1995-07-21 | Nec Corp | 隣接チャネルの高レベル妨害波による誤動作防止 機能を持つ受信回路 |
US6047171A (en) * | 1998-01-08 | 2000-04-04 | Ericsson Inc. | Method and apparatus for combating adjacent channel interference using multiple IF filters |
GB2341741B (en) * | 1998-09-18 | 2003-03-26 | Nec Technologies | Stabilisation of passband active filters |
US6968157B2 (en) * | 2001-08-22 | 2005-11-22 | University Of Maryland | System and method for protecting devices from interference signals |
US7221917B2 (en) * | 2002-05-01 | 2007-05-22 | Ibiquity Digital Corporation | Adjacent channel interference mitigation for FM digital audio broadcasting receivers |
DE10249353B4 (de) * | 2002-10-23 | 2015-01-22 | Robert Bosch Gmbh | FM-Selektionsfilteranordnung und Verfahren zur Steuerung einer FM-Selektionsfilteranordnung |
EP1962432A1 (fr) * | 2007-02-22 | 2008-08-27 | Semiconductor Ideas to The Market (ItoM) BV | Récepteur FM |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL67099C (fr) * | 1940-06-29 | |||
US3231822A (en) * | 1961-12-22 | 1966-01-25 | Bell Telephone Labor Inc | Frequency modulation feedback receiver |
JPS52119108A (en) * | 1976-03-31 | 1977-10-06 | Sansui Electric Co | Muutuning device |
JPS539403A (en) * | 1976-07-14 | 1978-01-27 | Pioneer Electronic Corp | Fm stereophonic receiver |
US4081771A (en) * | 1976-12-06 | 1978-03-28 | Zenith Radio Corporation | 82 Detent manual varactor tuning system |
US4192970A (en) * | 1977-01-31 | 1980-03-11 | Kahn Leonard R | Reduction of adjacent channel interference |
US4356567A (en) * | 1977-06-28 | 1982-10-26 | Pioneer Electronic Corporation | Radio receiver with bandwidth switching |
JPS5828968B2 (ja) * | 1977-08-31 | 1983-06-20 | ソニー株式会社 | Pll方式周波数シンセサイザチュ−ナ |
US4267605A (en) * | 1979-02-26 | 1981-05-12 | Trio Kabushiki Kaisha | Interference eliminator in communication receiver |
DE2929647C2 (de) * | 1979-07-21 | 1990-09-13 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | UKW-Stereo-Autoempfänger |
US4352208A (en) * | 1980-03-04 | 1982-09-28 | Motorola, Inc. | Automatic IF selectivity for radio receiver system |
US4385402A (en) * | 1980-04-16 | 1983-05-24 | Redifon Telecommunications Limited | Switchable filter circuits |
JPS5733834A (en) * | 1980-08-07 | 1982-02-24 | Clarion Co Ltd | Frequency modulation noise reducing circuit |
FR2490427B1 (fr) * | 1980-09-16 | 1986-04-18 | Thomson Csf | Demodulateur d'un signal module en frequence et systeme de television comportant un tel demodulateur |
DE3048263A1 (de) * | 1980-12-20 | 1982-07-29 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Rundfunkempfangsgeraet |
CA1190289A (fr) * | 1981-04-28 | 1985-07-09 | Nippon Hoso Kyokai | Systeme demodulateur de signaux en modulation de frequence |
US4388731A (en) * | 1981-07-01 | 1983-06-14 | Rockwell International Corporation | Receiver with squelch for offset carrier environment |
JPS6250029B1 (fr) * | 1981-08-31 | 1987-10-22 | Oki Electric Ind Co Ltd | |
DE3137843A1 (de) * | 1981-09-23 | 1983-03-31 | Robert Bosch Gmbh, 7000 Stuttgart | Filter- und demodulationsschaltung |
US4406019A (en) * | 1981-11-16 | 1983-09-20 | The Bendix Corporation | Selectivity means in amplitude modulated radio receivers |
US4718116A (en) * | 1982-06-01 | 1988-01-05 | Aerotron, Inc. | Method and apparatus for receiving a compressed composite signal |
EP0089853B1 (fr) * | 1982-03-23 | 1987-04-01 | Nec Corporation | Circuit de détection d'ondes d'interférences pour application dans un récepteur radio |
JPS59185433A (ja) * | 1983-04-06 | 1984-10-22 | Trio Kenwood Corp | Am受信機 |
US4654884A (en) * | 1984-05-10 | 1987-03-31 | Alps Electric Co., Ltd. | Radio receiver with switching circuit for elimination of intermodulation interference |
JPS6172418A (ja) * | 1984-09-17 | 1986-04-14 | Alps Electric Co Ltd | 衛星放送用受信機 |
DE3438286A1 (de) * | 1984-10-16 | 1986-04-17 | Hansen/Catito Elektronik, 1000 Berlin | Verfahren und schaltungsanordnung zum umsetzen frequenzmodulierter signale ueber mindestens eine zwischenfrequenz in niederfrequenzsignale |
JPH0746780B2 (ja) * | 1985-01-31 | 1995-05-17 | 松下電器産業株式会社 | ラジオ受信機 |
US4812851A (en) * | 1985-10-31 | 1989-03-14 | Digital Marine Electronics Corporation | Radio receiver with automatic interference cancellation |
US4761829A (en) * | 1985-11-27 | 1988-08-02 | Motorola Inc. | Adaptive signal strength and/or ambient noise driven audio shaping system |
DE3724604A1 (de) * | 1987-04-15 | 1988-12-01 | H U C Elektronik Gmbh | Anordnung zum filtern eines fm-ukw-empfangssignals |
-
1988
- 1988-05-30 DE DE3818750A patent/DE3818750A1/de not_active Withdrawn
-
1989
- 1989-05-30 AT AT89906029T patent/ATE98824T1/de not_active IP Right Cessation
- 1989-05-30 JP JP1505403A patent/JPH03504668A/ja active Pending
- 1989-05-30 AU AU36921/89A patent/AU3692189A/en not_active Abandoned
- 1989-05-30 US US07/601,748 patent/US5241697A/en not_active Expired - Fee Related
- 1989-05-30 EP EP89906029A patent/EP0436542B1/fr not_active Revoked
- 1989-05-30 DE DE89906029T patent/DE58906461D1/de not_active Revoked
- 1989-05-30 WO PCT/DE1989/000357 patent/WO1989012353A1/fr not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE58906461D1 (de) | 1994-01-27 |
EP0436542A1 (fr) | 1991-07-17 |
EP0436542B1 (fr) | 1993-12-15 |
DE3818750A1 (de) | 1989-12-14 |
US5241697A (en) | 1993-08-31 |
JPH03504668A (ja) | 1991-10-09 |
WO1989012353A1 (fr) | 1989-12-14 |
AU3692189A (en) | 1990-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee | ||
RZN | Patent revoked |